-5n+7+8n=-n-9

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Solution for -5n+7+8n=-n-9 equation:


Simplifying
-5n + 7 + 8n = -1n + -9

Reorder the terms:
7 + -5n + 8n = -1n + -9

Combine like terms: -5n + 8n = 3n
7 + 3n = -1n + -9

Reorder the terms:
7 + 3n = -9 + -1n

Solving
7 + 3n = -9 + -1n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add 'n' to each side of the equation.
7 + 3n + n = -9 + -1n + n

Combine like terms: 3n + n = 4n
7 + 4n = -9 + -1n + n

Combine like terms: -1n + n = 0
7 + 4n = -9 + 0
7 + 4n = -9

Add '-7' to each side of the equation.
7 + -7 + 4n = -9 + -7

Combine like terms: 7 + -7 = 0
0 + 4n = -9 + -7
4n = -9 + -7

Combine like terms: -9 + -7 = -16
4n = -16

Divide each side by '4'.
n = -4

Simplifying
n = -4

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